PHILLY CHEESESTEAK CASSEROLE

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Philly Cheesesteak Casserole: All the Flavor of the Classic Sandwich, Baked to Perfection

If you love a classic Philly cheesesteak but want something easier to serve, heartier, and perfect for sharing, Philly Cheesesteak Casserole is the answer. This comforting dish captures everything we adore about the iconic sandwich—tender beef, sautéed peppers and onions, and gooey melted cheese—layered into a rich, oven-baked casserole that feeds a crowd with minimal effort. It’s ideal for busy weeknights, potlucks, or anytime you’re craving bold, savory flavors without standing over the stove.

What Makes This Casserole Special?

Unlike the traditional sandwich, this casserole version is:

Easier to prepare – no need to assemble individual sandwiches
More filling – hearty layers make it a complete meal
Family-friendly – simple ingredients and familiar flavors
Customizable – swap cheeses, add mushrooms, or adjust seasonings

The result is a warm, cheesy bake that tastes just like a cheesesteak—only cozier.

Ingredients You’ll Need

To make a classic Philly Cheesesteak Casserole, gather the following:

Thinly sliced beef steak (sirloin, ribeye, or shaved steak)
Olive oil or butter
Green bell peppers, sliced
Onion, thinly sliced
Garlic, minced
Salt and black pepper
Worcestershire sauce
Cream cheese (for richness)
Provolone cheese, shredded or sliced
Mozzarella cheese (optional, for extra melt)
Eggs (to bind the casserole)
Heavy cream or milk
Optional additions: mushrooms, red bell peppers, hot peppers

Step-by-Step Method

Step 1: Prepare the Oven and Baking Dish

Preheat your oven to 375°F (190°C). Lightly grease a casserole dish to prevent sticking and ensure easy serving later.

Step 2: Cook the Vegetables

Heat olive oil or butter in a large skillet over medium heat. Add the sliced onions and bell peppers and sauté until they become soft and slightly caramelized. This step builds the sweet, savory base that defines a cheesesteak. Stir in the minced garlic and cook briefly until fragrant. Remove the vegetables from the skillet and set aside.

Step 3: Cook the Beef

In the same skillet, add the thinly sliced beef. Season with salt, black pepper, and a splash of Worcestershire sauce. Cook quickly over medium-high heat, stirring often, until the beef is just browned and tender. Avoid overcooking to keep the meat juicy.